if there is a question about the value of a position or a disagreement about a risk limit, the risk manager's view should always prevail.
2
if a person, idea, or principle prevails in a fight, argument etc, they are successful in the end
Justice will prevail. common sense prevails/reason prevails (=a sensible decision is made) He considered lying, but then common sense prevailed.
prevail over/against
Your inner strength will enable you to prevail over life's obstacles.
prevail on/upon somebody phrasal verb
to persuade someone
prevail on/upon somebody to do something
She prevailed upon her father to say nothing.